When to Plant Zinnia Seeds
Zinnias are best started directly outdoors in locations where spring warms up early. Keep in mind that Zinnias are native to Mexico, where they have become accustomed to long, hot summers. They are classed as tender annuals and can be directly sown into the garden after all danger of frost is over and daytime temps are at least 50F and above. In cooler climates, start seeds indoors 4 to 6 weeks before your area’s average last-frost date. Harden off the plants by vacationing trays outside for a few hours per day before planting them in your garden.
Where to Plant Zinnia Seeds
Choose a spot that has full sun. Zinnias can thrive in a wide array of well-draining soil conditions.
How to Plant Zinnia Seeds
Turn over the soil in the area you want to plant your zinnias and work in 2 or 3 inches of compost or peat moss to help improve soil fertility and drainage. Plant the seeds only about ¼” – ½” deep and you should see seedlings sprout in four to seven days. Once the seedlings reach about 3” tall, thin them to maximize air circulation, and prevent powdery mildew. The dwarf varieties, reaching a height of 1 to 1 ½ feet, should be planted or thinned to about 9” apart, while the taller 3-feet varieties should be spaced about 1 foot apart. If starting your zinnias indoors, fill up your pots with organic potting mix. Saturate the potting mix with water and then place two zinnia seeds into each planting cell or pot. Press into the soil for good seed-to-soil contact and then cover with approximately ½” of the potting mix. Place your zinnias in an area that will receive plenty of warmth (65-70F) and light. Keep your zinnia seeds moistened, checking on them every day or two. Expect to see germination in about 7 to 10 days. Once your seedlings reach about 2 ½ - 3” tall, they are ready to be transplanted outdoors. Zinnias may be transplanted with ease, as it is possible to move the plants when they are in full flower! Although they thrive best in full sun, they will also endure partial shade.
How to Care for Zinnias
Water the area of your zinnia plants carefully, do not get the stems or leaves wet since zinnias are prone to mildew. Keep your zinnia garden lightly moistened, and let the area dry out between watering. The beauty of zinnias is that you can spend your attention elsewhere while they bloom profusely summer to autumn.
Customer Photos
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Zinnia Field | Kristin from Virginia
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My wildflower | Holly Booker from Tennessee
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Garden harvest | Nicole from Idaho
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My two row flower “field” and my favorite visitor | Nicole from Idaho
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Kristina’s fresh cuts from our Garden of Eden | Ona Stewart from California
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My zinnias! | Jodie Prine from Wisconsin
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Green With Envy | Grandbleu72evrdream from New York
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Flower harvest | Kaitlyn from Massachusetts
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Zinnia hedgerow | Casey from New York
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Bouquet from my garden | Leigh from Nebraska
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Feeling “zen” with my zinnias! | Deanna from Mississippi
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Dahlias and zinnias | Lauren from New York
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Zen Flowers | Diana Sanders from Texas
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First Zinnia | Jamie from Wisconsin
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Miss Willmott | Donna from California
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A single Queen Lime Zinnia | Johanna Pike from Connecticut
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My field of Zinnias and sunflowers. | David Roberson from Indiana
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My Zinnia Garden | Tommy Williamson from Tennessee
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Our beautiful Zin Master zinnias! | Lynnette from Indiana
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Zinnias and wildflower border | Carl from Michigan
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My garden of zinnias | Tommy from Tennessee
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A little Slice of Heaven on Earth ! | Karen from New York
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Bursting with Zinnias! | Tracy from Illinois
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Zinnias in Bulk! | Tracy from Illinois
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Zinnia Love | Tracy from Illinois
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Zinnia… a great flower to both add color to your garden and help out our pollinator friends. | Erin from Minnesota
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Tub of zinnias | Janet Starnes from Oklahoma
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A Blushing Bouquet! | Ledley from West Virginia
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Zinnias | Dan from District Of Columbia
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Pollinator on zinnias! | Varenka Rodriguez DiBlasi from New York
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My lime queen blush | Thao from California
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Touch of sunshine | Julie from South Carolina
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My Garden Beds | John Pitts from Georgia
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Pierce Farm Zinnia Field | Jennifer from Illinois
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My Field Of Zinnias | Ruth Thomas from Alabama
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Beautiful red zinnias | Sally from Illinois
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Zinnias | Kathryn from North Carolina
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Brothers | Elaine from Iowa
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Zinnia Patch | Megan from Wisconsin
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Hats off to the Senorita zinnia! | Jessica from Illinois
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Butterfly on Zinnia | Kathryn from North Carolina
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Busy bee | Larochelle from Illinois
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Save the bees | Larochelle from Illinois
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Zinnia Beauty Queen! | Rebecca from North Carolina
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Granddaughter falling in love with flowers | Jen from North Carolina
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Zinnias & Squash | Ginger from Utah
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Zinnias for the mini meadow! | Melissa from Georgia
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Cutting Garden Outside my Bedroom | Lyn from Georgia
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Zinnia flowerbeds | Kristina from Alabama
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Zinnia and tomato Heaven | Marion from Texas
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Dahlias and Zinnias and cousin Lee | Eileen from Louisiana
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BUTTERFLY ATTRACTOR! | KYLE from
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Butterfly favorite! | Shirley from
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This Tiger loves the Giants! | Wendy from Maryland
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Eden Bros seeds in stages | Pam from North Carolina
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Eden Bros zinnias for Mama! | Pamela from North Carolina
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Butterflies and Zinnias | Ann from Kansas
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Zinnia | Deanna from Michigan
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Zinnia Border | Jackie from Missouri
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Cosmos and Zinnias | David Stewart from North Carolina
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Flower bouquet | Maci from Kentucky
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Butterfly 🦋 on our zinnias | Maci from Kentucky
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Beautiful colors! | Vicky from Indiana
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Summer Love | Chrmn_l@yahoo.com from Massachusetts
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My field of Zinnias for real!! | David J DeLoach from Louisiana
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Wildflowers and zinnias | Taylor from Kansas
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Front yard Zinnias | JOHN THOMAS from Kentucky
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Summer | Matt from District Of Columbia
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Zinnia field | Michael James Oliver from Rhode Island
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August harvest | Rhiannon M Lawson from Virginia
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Zinnias and dahlias | Rhiannon M Lawson from Virginia
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Roses Are Fine but a Field of Zinnias is Divine | Tim Reinbott from Missouri
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Roses are fine, but a field of zinnias is divine. | Tim from Missouri
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The bees love my zinnias. | Kathryn O’Brien from Ohio
![](https://grow.edenbrothers.com/wp-content/uploads/2022/08/PXL_20220801_235354703.PORTRAIT.jpg)
Flower Child | Becky from Oregon
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Zinnia Fairy | Becky from Oregon
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Zinnias & Millet | Sydney from Arkansas
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My flower bed | Mary from Nevada
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Wheel barrow of my red zinnias | Elise from North Carolina
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An unexpected guest | Claire from Indiana
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Pollen pitstop | Bailey from Virginia
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Happy Pollinators | Jeffrey Parmentier from South Carolina
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My zinnia patch | Jodie from Wisconsin
![](https://grow.edenbrothers.com/wp-content/uploads/2022/08/CF2728DC-0395-42F6-9C61-D27B541178DB-scaled.jpeg)
Zinnias | Mark from North Carolina
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Zinnia Sunset | Amanda from Kentucky
![](https://grow.edenbrothers.com/wp-content/uploads/2022/07/79769D10-A2EF-47AE-AB5B-9083713985AF-scaled.jpeg)
Example: My Field of Zinnias! | Andrea from Illinois
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A country girl’s garden | Judy from South Carolina
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Somewhere over the rainbow | Donna from Colorado
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Labor of love | Stephanie from Illinois
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Memory Garden | Sandy from Texas
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Garden of zinnias | Katie from Iowa
![](https://grow.edenbrothers.com/wp-content/uploads/2022/07/20220705_082916-scaled.jpg)
Zinnias | MICHAEL MELICIA from Florida
![](https://grow.edenbrothers.com/wp-content/uploads/2022/07/2EAA74B6-CFC6-4054-8DD1-AE237251D752.jpeg)
Example: My Field of Zinnias & perennial wildflower mix | Karen from Kansas
![](https://grow.edenbrothers.com/wp-content/uploads/2022/07/IMG_20220711_063755.jpg)
My wife bloom garden begin!!! | Martin from
![](https://grow.edenbrothers.com/wp-content/uploads/2022/07/EdenBrothers361.jpg)
Zinnias in Garden | Ashleigh from North Carolina
![](https://grow.edenbrothers.com/wp-content/uploads/2022/06/IMG_2614-Cindy-C.jpeg)
Zinnia seeds -California Giants | Cindy from Virginia
![](https://grow.edenbrothers.com/wp-content/uploads/2022/06/Zinnias-James-2021.jpeg)
Zinnias | Jim from New York
![](https://grow.edenbrothers.com/wp-content/uploads/2022/06/Ken-Holland-2021.jpeg)
Flowers from Holland | Ken from
![](https://grow.edenbrothers.com/wp-content/uploads/2022/06/Zinnia-RoosterHillFlowers-KY-2021.jpeg)
Zinnias Meadow | Rooster Hill Flowers (Libbi) from Kentucky
![](https://grow.edenbrothers.com/wp-content/uploads/2022/06/Zinnia-ZinMasterMix-Leonard-NY-2021.jpeg)
Pathway of Zinnias | Leonard from North Dakota